EDT directION QP451, Quick User Manual

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Setting up
Battery installation. (refer to figure 1)
Remove the battery cover by loosening the retaining cross head screw. Please note this screw has a
retainer and will therefore remain with the cover to prevent loss.
Once open unpack the 4 AA Batteries supplied and insert ensuring the polarity is correct for each
battery.
Replace the cover.
Setting the Time and Date.
1. Switch the unit on using the on/off button.
2. Press the right arrow Key to Enter the PARAMETERS ADJUST SCREEN
3. Scroll down to the DATE FORMAT option and press READ until you arrive at the desired
format.
4. Scroll down to the CLOCK option using the down arrow key.
5. Press READ to enter the CLOCK screen.
6. Select CANCEL using the down arrow Key and press READ until the current DATE
in the entry box is removed. Select the current date digit by digit by selecting the correct
number and pressing
READ .
7. When the entry box contains the correct date select ENTER and press READ .
8. You are now in the TIME screen. Repeat from 5 above to select the correct time.
9. From the PARAMETERS ADJUST screen press READ to return to the pH Mode.
Calibration and Measurement
Accurate pH measurement requires that you do not cross contaminate buffers and samples. Before
using the pH probe ensure it is rinsed with deionised water and blotted dry. Repeat this procedure
when transferring between all standards and samples.
1. Connect the pH Electrode to the BNC connector on the top rear of the instrument.
2. Connect the ATC probe Jack into the 3.5 mm Jack socket next to the BNC socket.
3. Press the
on/off switch. The display will light up.
4. The meter is now in the pH mode. Press CAL to start calibration.
Figure 1